The Reliability of the Finite Element Simulation of the Interface Mechanical Effect of Inclusion and Matrix Material in Powder Metallurgy Superalloy

The inclusion defects in powder metallurgy superalloy have the characteristics of randomness, such as the shape, size, location and composition. It is important to establish effective and reliable finite element model and method to study the influence of the different defects. In this paper, the inc...

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Bibliographic Details
Published inIOP conference series. Materials Science and Engineering Vol. 269; no. 1; pp. 12027 - 12036
Main Authors Xin-ling, Liu, Tian-yu, Wang, Kai, Zhao
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.11.2017
Subjects
Complex variables
Defects
Exact solutions
Finite element method
Mathematical analysis
Mathematical models
Numerical analysis
Powder metallurgy
Simulation
Stress concentration
Stress distribution
Superalloys
Two dimensional models
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Summary:The inclusion defects in powder metallurgy superalloy have the characteristics of randomness, such as the shape, size, location and composition. It is important to establish effective and reliable finite element model and method to study the influence of the different defects. In this paper, the inclusion/matrix interface model was proposed, and on the basic theory of two-dimensional elastic problems of complex variable function, the analytical formula was derived and the analytical solution was calculated for the condition of circular inclusion in matrix. On the other hand, stress distribution of the interface of inclusion and matrix was simulated by finite element method. The finite element model is proved effective, reliable through comparison analysis between the numerical analysis method and finite element simulation.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/269/1/012027